ERRATUM In Vol. 16, No. 3, the March issue, page 388, the names of the authors were inadvertently ran together, removing the spaces between the first and last names and deleting the “and” between the author’s names. The printer sincerely regrets the error. Below is how the author names should have been published: Chemometric Approaches in Calibration Experiments of Trilinolenoylglycerol by Liquid Chromatography Ion-Trap Mass Spectrometry Pedro Araujo, Thu-Thao Nguyen, and Livar Frøyland Seafood and Health Research Group, National Institute of Nutrition and Seafood Research, Bergen, Norway The article presents a comprehensive account of the application of chemometric approaches to determine the factors that influence the tri--linolenoylglycerol (TALG) ammoniated adduct signal m/z 890.6 in an ion-trap mass spectrometer coupled to a liquid chromatograph and the estimation of different sources of errors involved in TALG calibration experiments. It was found that by using experimental design, the influence of the nebulizer pressure on the analytical signal is less pronounced than the influence of the drying gas flow and the chromatographic flow rate. The results revealed that without using tandem mass or atmo- spheric pressure chemical ionization, it is possible to fragment the TALG backbone and obtain the free -linolenic acid by varying the drying gas flow and using an electrospray interface. The error decomposition approach revealed that the preparation error was 26 times higher than the instrumental error. (J Am Soc Mass Spectrom 2005, 16, 388 –396) © 2005 American Society for Mass Spectrometry © 2005 American Society for Mass Spectrometry. Published by Elsevier Inc. 1044-0305/05/$30.00 doi:10.1016/j.jasms.2005.03.007 (J Am Soc Mass Spectrom 2005, 16, 801)

Chemometric Approaches in Calibration Experiments of Trilinolenoylglycerol by Liquid Chromatography Ion-Trap Mass Spectrometry

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Page 1: Chemometric Approaches in Calibration Experiments of Trilinolenoylglycerol by Liquid Chromatography Ion-Trap Mass Spectrometry

ERRATUM

In Vol. 16, No. 3, the March issue, page 388, the names of the authors were inadvertently ran together, removing thespaces between the first and last names and deleting the “and” between the author’s names. The printer sincerely

regrets the error. Below is how the author names should have been published:

Chemometric Approaches in CalibrationExperiments of Trilinolenoylglycerolby Liquid Chromatography Ion-TrapMass Spectrometry

Pedro Araujo, Thu-Thao Nguyen, and Livar FrøylandSeafood and Health Research Group, National Institute of Nutrition and Seafood Research, Bergen, Norway

The article presents a comprehensive account of the application of chemometric approaches todetermine the factors that influence the tri-�-linolenoylglycerol (TALG) ammoniated adductsignal m/z 890.6 in an ion-trap mass spectrometer coupled to a liquid chromatograph and theestimation of different sources of errors involved in TALG calibration experiments. It wasfound that by using experimental design, the influence of the nebulizer pressure on theanalytical signal is less pronounced than the influence of the drying gas flow and thechromatographic flow rate. The results revealed that without using tandem mass or atmo-spheric pressure chemical ionization, it is possible to fragment the TALG backbone and obtainthe free �-linolenic acid by varying the drying gas flow and using an electrospray interface.The error decomposition approach revealed that the preparation error was 26 times higherthan the instrumental error. (J Am Soc Mass Spectrom 2005, 16, 388–396) © 2005 AmericanSociety for Mass Spectrometry